Disco Snuffy and Big Bird

S1, E9: Big Bird and Snuffy groove to a disco version of “Rubber Duckie”; Guy Smiley and Cookie Monster appear in “Beat the Time”; Grover sings about the letter “I”; Bob and Big Bird meet a dragon in New York’s Chinatown; and Ernie’s opera singing wakes the neighbors. Plus: Herry Monster visits the eye doctor and an animated version of “We All Live in a Capital I.”